ggmap

I would like to make a map of the Netherlands with curved lines between cities. I have two dataframes number one called: df_verticles which contains 24 cities with their lat/lon combination. The second dataframe called: df i want to use to draw a curved line between lat/lon from combination to the lat/lon to combination. > head(df_vertices) city AmountSessions totalkWh AmountRFID scaledAmount scaledkWh Latitude Longitude 1 Alkmaar 13608 104554.68 1326 0.07139012 0.026941910 52.63903 4.755538 2 Almere 11281 100841.42 930 0.05006999 0.025985067 52.39447 5.282043 3 Amersfoort 7719 67663.30 1198 0

HI I am using ggmap and gg_point function to show the measured data in an estuary. The code that I used is as follows: library(ggmap) al1 <- get_map(location = c(lon = -87.525, lat = 30.35), zoom = 12, maptype = 'terrain') lon<- c(-87.604474,-87.55) lat<- c(30.362563,30.35) label <- c("A","B") df<-data.frame(lon,lat,label) p <- ggmap(al1)+geom_point(data=df,aes(x=lon,y=lat,shape=label,label=label),size=3) p <- p + xlab("Longitude")+ylab("Latitude") p <- p +geom_text(aes(label=label, size=3,vjust=0)) p <- p + labs(title="Monitoring stations ") p ggsave("plot.pdf") Here when I use geom_text then

I am wondering how to draw a map using get_map and ggmap of any federal country (i.e. a country with provinces and counties). Any country, other than the US would be great. To make it look nice, fill the geom_polygon of counties (any fill), and provinces are empty polygons, only with its contours. So, basically, it is two overlapping ggmaps. You can get the shapefiles here: https://www.dropbox.com/s/4nl685t860x1e8r/municipios_br.zip rm(list = ls()) library(ggplot2) library(rgdal) library(ggmap) # READ SHAPEFILE OF BOUNDARIES Map <- readShapePoly("municipios_br.shp") head(as.data.frame(Map))

I am having clipping problems when I try to combine ggmap with shape files. The example in Kahle and Wickham (2013: 158) works fine because the raster image from ggmap covers the entire shape file. Below is an example of what happens when I try to plot the shape file for U.S. states on a ggmap plot that covers a smaller area. The ggmap shows New York City and I want to overlay it with the borders for U.S. states (just as an example). The resulting map doesn't make any sense. The problem is that the shape file gets clipped and ggplot connects the unclipped points. Below is the code. The shape

I am trying to plot some information that shows full population and then a subset of that population by location on a map. I've seen data visualizations that use concentric circles or 3-d inverted cones to convey this. I just can't figure out how to do it in ggplot / ggmap Here's a free hand version in Paint that shows a rough idea of what I'm looking to do: Here's a rough piece of data for an example: > dput(df1) structure(list(zip = c("00210", "00653", "00952", "02571", "04211", "05286", "06478", "07839", "10090", "11559"), city = c("Portsmouth", "Guanica", "Sabana Seca", "Wareham", "Auburn"

I would really appreciate some help / ideas about a problem I am having with ggmap and stamen watercolor. I keep getting the same error message every time I try to create a stamen watercolor map: "Error in readPNG(destfile) : file is not in PNG format" Here are some examples of simple code that is returning this error: qmap("new-york", zoom=13, source="stamen", maptype="watercolor") or get_map(location='Auckland', source="stamen", maptype="watercolor", zoom=13) I am using r version: [Default] [64-bit] C:\Program Files\R\R-3.0.2 under windows 8 I realize a few people have posted about this same